pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3889-070-Mrs_Waller-V1.ps) >>/Users/jc/w/tmp/Tune-3889-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/HibernianMuse/070-Mrs_Waller-V1.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_38893.log 902821 Log file, useful mostly for debugging
Coll_38894.log 462610 Log file, useful mostly for debugging
Coll_38895.log 457009 Log file, useful mostly for debugging
List38896.log 166 Log file, useful mostly for debugging
Tune-3889-070-Mrs_Waller-V1.abc 1419 ABC music file with the extracted tune(s)
Tune-3889-070-Mrs_Waller-V1.ps 46083 PostScript
Tune-3889-070-Mrs_Waller-V1.txt 1419 Plain-text file with the extracted tune(s)
Tune-3889-get.log 4576 Log file, useful mostly for debugging
Tune-38892-get.log 4433 Log file, useful mostly for debugging
Tune-38897-get.log 1426 Log file, useful mostly for debugging
Tune-38898-get.log 5523 Log file, useful mostly for debugging
These files should be available for 24 hours.